Seiko Cal. 7123 - 660

Released in 1978, the Cal. 7123 with design code 660 was part of Seiko's domestic market collection. With its 18mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-0148cd1db1c1]

Also known as: Sumo, Navigator

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1978

Related Models

• Seiko 6231-664
• Seiko 3890-127
• Seiko 6641-481
• Seiko 5645-937
• Seiko 7062-569
• Seiko 7166-216
• Seiko 7118-664
• Seiko 4461-621
• Seiko 5246-766
• Seiko 5285-458
• Seiko 5614-264
• Seiko 6698-284